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If an aqueous solution feels soapy and turns turmeric reddish-brown, what will be its nature?

Answer and explanation

Correct answer: Basic

A slippery or soapy feel is a common physical indication of a basic solution, although it should not be tested by touching unknown chemicals in practice. Turmeric is a natural indicator: it remains yellow in acidic or neutral conditions but turns reddish-brown in the presence of a base. Both observations point to alkalinity, so option B is correct. Acidic and neutral solutions do not produce this combined response, and being salt-free is not a measure of acid-base nature.

Related tags

TurmericBase IndicatorAlkaline SolutionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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